Portable staging.



PATENTED JAN. 2, 1906.

T. H. KINGSTON. PORTABLE STAGING.

APPLICATION FILED APR. 27, 1905.

2 SHEETS-SHEET l.

PATBNTED JAN. 2, 1906.

H. KINGSTON. PORTABLE STAGING.

APPLICATION FILED APR.27, 1905.

2 SHEETS-SHEET 2.

' UNITED STATES PATENT OFFICE. THOMAS HAVLOCK KINGSTON, OF SOMERVILLE, MASSACHUSETTS. V PORTABLE STAGING- No. 808,989. 7 Specification of Letters Patent. Patented Jan. 2, 1906.

I Application filed April 27, 1905. Serial No. 257,756.

To aZZ whom it may concern: against each other by means of their notched Be it known that I, THOMAS HAVLOCK folding braces J and J, having interlocking KINGSTON, a citizen of the United States, reends K K, pivoted together midway thereof, siding at Somerville, in the county'of Middleas shown. The upper ends of these jointed sex and State of Massachusetts, have inventbraces are pivoted to the arms C and C at L ed a new and useful Portable Staging for Ma- L, and the notches M M in their lower sons, of which the following is a specification. branches lock onto studs N, projecting from My invention relates to a portable staging supports E and E. Holes 0 O are drilled in for the use of masons upon the roofs of buildthe horizontal arms C C equally distant from [0 mgs in constructing chimneys and repairing rodH. Commencing at a point equally distant the same; and it has for its object to furnish from rod H three other holes P are drilled at a staging having a light strong portable equal intervals from each other through the folding frame readily adjustable 'to various opposite supports E E. These holes are so pitches of roof and that can be expeditiously arranged in the arms of the two sections A I I 5 and cheaply put in place. I attain said oband B that by changing the rod H from one ect by means of the device hereinafter more to the other and correspondingly adjusting fully described, which embodies my said inthe notches M in the braces J from one posivention and is illustrated in the acconipanytion to another on their projecting studs N ing drawings, in which the staging-frame can be readily adapted to 20 Figure 1- 1s a top view of my staging-frame any usual variation in the pitch of the roof when folded in its most compact form for on which the staglng is required to be used. transportation. Fig. 2 is a perspective of As illustrated in Fig. 2, it is adapted to a pitch the same as when erected on a roo' for pracof forty-five degrees, the degree of pitch obtical use; Fig. 3, views in perspective of parts tained being predetermined by the arrange- 25 of the folding side braces and their pivotal ment of the holes in the supports and the bolt, showing their adaptation for interloclrnotches in the braces, as shown. What I ing and forming a oint. Fig. 4 is a perspecterm the head of the frame is composed of tive illustrating the manner of attaching the a metal fastening-plate R, having spurs S S, head of theframe to a shingled roof. Fig. 5 bent downward from the sides thereof, and a 0 is an isometric view showing the head of hole is punched through the outer end, as

the frame folded inward, as in Fig. 1, but as shown, through which a spike may be driven, seen from the opposite direction or beneath. if desired. This plate is riveted to a cross- Fig. 6 is a partial end elevation of the frame, bar T, which has ears T T turned upward partly in section, showing the method of adon'the ends thereof. Links U U are pivoted 5 ustably cohnecting the upright and horizonto the ears T T and also pivotally connected 9o tal sections of the frame. Fig. 7 is an illuswith the notched ends 0 arms C and C in trative drawing showing in perspective the front of the ends of the cross-bar V. The practical application of the invention to the forward ends of the armsC and C are notched use for which it is designed. to form penetrating points W thereon, and

40 The frame comprises two main sections A the lower ends of support E and E are simi- 5 and B, Figs. 1 and 2. Section A is comprised larly notched to form points W.

of two horizontal arms C and C, composed of The practical application of my invention, angle steel and united by a cross-brace D, the details of theconstructionof which Ihave riveted to the arms 0 C, as shown. Section now fully described, is clearly illustrated in 5 B is comprised of two upright supports E E, Figs. 4 and 7 of the drawings. In Fig. 7

composed of angle steel and united bya crossframes of different heights are shown as embrace F and a cross-bar G, riveted to the supployed together, and such a combination is ports E and E, as shown. Sections A and B often very advantageous in expediting the are also adjustably ged togetherbyarod H, Work. The lower one often serves as a con- 50 extended through E and C and E andO and venient platform for the handy deposit of 10 5 headed on one end and secured by a split pin brick and mortar thereon and also serves as a I through the opposite end, so that the same safe step, which greatly facilitates the labor may be readily removed to other positions in of the tender in depositing his load on the the arms and supports, as will be explained. higher frame and economizes his time. These 5 The sections A and B are further braced frames, while comparatively light, are stifiEly 1 1o formed and firmly braced and adapted to safely adhere to the roof under the pressure of their load, which is always much less than their ability to support. Much saving in time and labor is effected by their use in erecting temporary staging, and their durability, convenient portability, and compactness renders them otherwise a very economical invention.

I claim- 1. A portable, folding frame for supporting a temporary roof-staging, comprising the combination of the following parts constructed, arranged, and. operated as described, namely: a pair of horizontal platform-arms united by cross-bars and braces firmly riveted thereto: a pair of upright supports united in like manner by cross-bars and braces riveted thereto a rod extended through and connecting the ends of said platformarms and upright supports, thus hinging the two sections together: a pair of notched and jointed folding braces pivoted to the platform-arms, and at their opposite ends ad justably interlocked by means of their notches, with suitable studs projecting from the outside faces of the upright supports: and a fastening-plate riveted to a cross-bar having upturned ears connected by pivoted links to the front ends of the platform-arms, said plate being provided with spurs on its under side, and an opening through its body,

and by the flexibility of its connections made capable of lying flat against roofs of varying pitch; all as and for the purposes specified.

2. The combination of section A, composed of arms C, C, formed of angle-steel, and united by cross-braces D, and bar V, riveted to the arms: section B,composed of supports E, E, of like construction as said arms, and united by cross-braces F, and bar G, riveted thereto, the arms of sectionA having single holes 0, in their sides, and penetrating points W, on their front ends, and the supports of section B having suitably-arranged holes P, P, in their sides, and penetrating points W on their lower ends, and projecting studs N, N on their opposite outer faces: adjustable braces J, J, pivoted to arms at L, L, and jointed together at K, K, and having notches M, M, arranged to interlockwith studs N,N rod H by which sectionsAand B are detachably pivoted together, and adjustably united so as to conform to various pitches of roof: and a fastening-plate R, formed with spurs on its under side, and a hole through its body, and being riveted to a movable bar T,which is pivoted at T and T to links U, U, pivoted to the front ends of arms O, C; all constructed, combined and arranged to operate together substantially in the manner and for the purposes specified.

THOMAS HAVLOCK KINGSTON. Witnesses:

EUGENE HUMPHREY, MAXWELL T. SMITH. 

